Ore-breaker.



Patented Aug. l9, I902. A. C. CALKINS.

ORE BREAKER.

(Application flled June 8 1901.)

(No Model.)

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W/TNESSES A rromvs rs) THE Norms PETERS c0. PnoToLm-mnwAsnmamm n c No. 707,385. Patented Aug. l9, I902.

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.OBE BREAKER.

(Application filed June 8, 1901.)

(Ila Model.) a Sheets-Shah 3.

UNITED STATES P TENT OFFICE.

ALBERT OHAMPLIN OALKINS, OF LOS ANGELES, CALIFORNIA, ASSIGNOR TO FREDERICK W. BRAUN, OF LOS ANGELES, CALIFORNIA.

ORE-BREAKER.

SPECIFICATION forming part of Letters Patent No. 707,385, dated August 19, 1902.

Application filed June 8,1901.

To all whom it may concern;

Be it known that I, ALBERT .CHAMPLIN CALKINs, of Los Angeles, in the county of Los Angeles and State of California, have invent-' ed a new and useful Improvement in Ore- Breakers, of which the following is a specification.

The object of my invention is to provide a simple ore breaker and crusher adapted to be turned by hand and especially applicable to the uses of assayers and others in the analysis of ores.

It relates to that form of ore-crusher in. which a stationary and vibratory jaw are arranged in angular relation to each other, so as to form a tapering throat between, and in which the vibratory jaw is oscillated by a pair of toggle-arms connected by a pitman with'a rotating crank-shaft.

My improvements comprehend means for conveniently and quickly cleaning the machine, for adjusting it to the graduation of the product, for taking up wear, and otherfeatures especially fitting the machine to the special uses of the assayer, as will be hereinafter more fully described, with reference to the drawings, in which- Figure 1 is a front elevation, and Fig. 2 a' vertical longitudinal section, of the entire ma-' chine. Figs. 3 and 4 are 'respectively a plan and side View of the main frame or casing. Fig. 5 is a vertical cross-section of the casing, the left-hand side of this figure being taken on line 5 5 of Figs. 3 and at and the righthand side on line 5 5 of these figures. Fig. 6 is a detail of the crank-shaft, and Fig. 7 represents details of the heel-block for the vibratory jaw.

Referring to Fig. 2, B represents a crankshaft whose double-cranked middle portion is connected by a pitman C with the middle joint of two toggle-arms:D-and D, one of which, D, has a rocking'abutment in a seat against the stationary part of the main frame, and the other of which, D, has a rocking abut ment against the vibratory jaw of the crusher to move it back and forth in relation to the stationary jaw in substantially the manner heretofore employed.

Referring to Figs. 3 and 4, A represents the main frame or casing, which is a narrow rec- Serial No- 63,732. (No model.)

tangular box having three of its sides cast in one piece, with openings in its side walls, as seen in Fig.4, to accommodate the journal- 'boxes a of the crank-shaft. This crank-shaft (see Fig. 6) has fly-wheels W W, Fig. 1, on its ends outside of the casing and is rotated by a crank w on one of the said wheels or by any other power appliance.

At one end the casing A is open and formed along the slightly-inclined-edges of its vertical side walls with perforated hinge-lugs a on one side and a on the other. Between these lugs are inserted the corresponding hingelugs e e of the heavy stationary crusher-jaw E, this jaw being secured on one side by a stationary pintle-pin b, Fig. 1, passing through the lugs, and on the other side by a second pin 1), which has a loop or eye at its top, by which it may be readily removed. By removing the pin 1) the stationary jaw E swings open as a door to give easy and quick access to the interior to permit the perfect cleaning of the interior, as is necessary in the prepa ration of successive charges of ore. The pins and lugs form a very strong connection, sufficient to resist the crushing strain, and to take up any looseness that may occur from wear at the pin-joints two set-screws m 'm, Fig. 1, are tapped through the stationary jaw andare made to bear against the edges of the vertical walls ofthe casing. On the inner face of the stationary jaw there is a detachable hardened wear-face E, secured in place by means of the bolt 6.

F is the vibratory jaw, which also has a hardened face F secured to it by a bolt f, and this bolt has securedupon it behind its nut a hook-shaped clip g, over whose hook is secured'a loop or eye on the end of a horizon tal tension-rod G,which passes through a hole in the end of the casing andcarries two cupped washers g g which form bearings for the ends of a helical spring G, whosetension is exerted on the rod G andv through it upon clip g and the vibratory jaw F'to hold the latter with an elastic pressure against its back bearings formed by the toggle-arm D and the heel-block I. Both these hearings are merely open seats or abutments from which the vibratory jaw may be easily and quickly lifted out when the relatively stationary jaw E is removed. To permit the removal of jaw F, tension on the rod G is released by turning back the handle-nut g and lifting the loop or eye of rod G oif the hook of the clip g. This same handle-nut permits the tension of the spring G to be increased or diminished at will to regulate the pressure of the vibratory jaw against its back bearings. The object of this tension device is to hold the jaw against its bearings without looseness. At the lower end of the vibratory jaw a pro longed heel f is formed which rocks in the heel-block as a fulcrum. This heel-block is made adjustable to bring the lower end of the movable jaw closer to or farther from the stationary jaw to regulate the fineness of the crushed material. The heel-block I has on the rear two lugs 71 t, which fit between the stationary lugs a of, cast on the side walls of the casing. Against the heel-block, outside these lugs, a long set-screw H bears, one on each side. These set-screws are screwthreaded at their inner ends and turn in screw-threaded holes in the lugs a so that when screwed in by the hand-wheels on their outer ends they force the sliding heel-block I and the lower end of the movable jaw closer to the stationary jaw. On the lower end of the movable jaw F there is formed a spurhandle f by which this jaw is supported when being lifted out of place.

Having thus described my invention, What I claim as new, and desire to secure by Letters Patent, is

1. In an ore-crusher, the combination with an inclosing casing open at one end and having perforated lugs at its said open end on each side; of a removable jaw having corresponding perforated lugs adapted to register with the lugs of the casing, and two pins passing through said registering lugs to secure the jaw in place substantially as described.

2. In an ore-crusher, the combination with an inclosing casing open at one end and having perforated lugs at said open end on each side; of a removable jaw having corresponding perforated lugs adapted to register with the lugs of the casing, two pins passing through said registering lugs to secure the jaw in place, and set-screws passing through the jaw and bearing against the casing to take up looseness in the joints between the jaw and casing substantially as shown and described.

3. In an ore-crusher, the combination with the stationary jaw, and the vibratory jaw having a heel at its lower end; of an adjustable heel-block having a f ulcrum-seat for the heel of the jaw in front and guide-lugs in the rear, a main frame or casing having on each side an inwardly-projecting lug arranged behind the heel-block and having a screwthreaded hole through it, and an adj ustingscrew on each side tapped through said lug and bearing against the heel-block and extending outside of the casing and provided with a handle, substantially as described.

ALBERT CHAMPLIN GALKINS.

Witnesses:

J. B. SMITH, A. E. STONE. 

